Neryl
[化] 橙花基
🗣️ 情景例句
study for my math final.
温习数学 准备期末考试。
When did you know the answer?
你什么时候知道答案？
One is the general atmosphere of secrecy in which it is carried out,
一是科研工作中普遍存在的保密气氛；